Piston, wrist pin, and connecting-rod aligning jig



1 630,476 May 31, 1927. H A. ERICKSON I PISTQN, WRIST PIN, AND CONNECTING ROD ALIGNING JIG Filed May 6. 1924 3 Sheets-Sheet l I1- TOR N En May 31, 1927. I 76 H. A. ERICKSON PISTON, WRIST PIN, AND CONNECTING ROD ALIGNING J'IG Filed May 6. 1924 3 Sheets-Sheet 2 l /M/'A/ra HERMAN A. RIC/($0N e/ M M Y 1,630,476 May H. A; ERICKSON PISTON, WRIST PIN, AND CONNECTING ROD XLIGNING JIG Filed May 6. 1924 3 Sheets-Sheet 3 Patented May i927.

HERMAN A. niarokson; or FRESNO, cAmroriNiim- PISTON, wnis'r rm, Ann {CONNECTING-ROD ALIGNING. JIG.

. Application at Ma :s,-1 924.fse ia1 1103111398. 1

My invention relates to a piston andwrist pin aligning provided with suitable indi eating means by means of which the direc-j tion and amount of whichthe piston or wrist.

pin is out of alignment is indicated, this means being-"so constructed and arranged that the amount of misalignment 1s magnn fied upon the index so thatv the operator can readily see the side upon which the misalignment lies as well as the approximate amount Heretofore in the use of aligning jigs for 'the abovepurp-ose it has been 'customary to use flat plates orV blocks against which the pistons were laid, and the amount thejpiston will easily and quickly indicate to the user the amount thereof. v v p I p A further object is to provide in a device direction of. 'misalign'ment and v the V of the above charactermeans for easily and quickly positioning the piston and its connecting rod therein.

A still furtherobject is to provide a cheap, simple and efficient device as above outllned.

Other objects and advantages will' 'appear hereinafter and, while I have shown and will describe'the preferred formof my ine vention, I wish it understood that I' do not limitmyself to. such preferred form, but that various changes 7 and adaptations may be made therein without departingfrom the spirit of my invention. 1 p

In the drawings accompanying and form ing. a. part hereof: v

Fig 1 is a side elevation of my device positioned for use.

' Fig. 2 is a top plan of Fig.1.

Fig. 3,.is a right hand end elevation of Fig. t is an enlarged fragmentarydetail on the line 4-A: of Fig.1. I Fig. .is a section on the line of Fig. (Sis aview siinilarto'Fig. 1, showing my device in operation; i

' Fig. 7 "s a top plan'of Fig. 6. i

Referring to the drawings,

lar in top plan, at "one side of one end of my ridev'ice comprises a base 10, substantially 'rectangu- Cally estendingstandards l1v [in the 7 upper ends of which! are. cut bearings V s i 13 and l t adapted to" receive the mandrel 15 upon which the crank Shaft end, of they :con-

necting rod is mounted. E'Xtending upwardly frombase .10 is a hub'l6e in which-is Fig. 1, and is loosely mounted with in a mounted thelower end of'a' stud 17in screwv threaded engagement. The upper end 18 0f stud 17 s reduced n s ze, as best shown n socket 19 in one end of abindingclamp 20. 1 Binding clamp 20' is substantially Y-shaped in top plan'and has the free ends of its." spaced legs 21 and22 adapted to register with the upper ends of members 11 and '12 when positioned for use. A stud-23 isrigidly mounted atfits lower end in base 10Ia'd 'jacent tomeinbers Hand 12 and its'upper end passes looselythrough aperture in member QOand is provided on itsfuppergend with a nut 25in screwthreadedengagement,

to provide means whereby legsQlf and 22 I may forced downwardly to bear against. the upper surface of mandrel 15 to holdthe same securely positioned foruseQiRotatably nounted in base 10,.intermediateitslength, ,and on the longitudinal center thereof, is a table 26 by means ofapintle- 27 passing loosely through a rectangular block slid ably mounted in a; longitudinally extending slot; 28 in base 10. and is heldj positionedlby a nut 29, and 'washerf29 asbest shown in Mounted between table26; and the 1 9'0 'ber 30 the rear. end' of which is pivot-ally upper face of base 10 is the indicatingmemconnected to base-10 by means of; pivot J screw 31. The other end of member 30 extends forwardly to a short distance. beyond the outer edge of table 26' and then' 'is bent upwardly at a rightangle and. term nates in 31 and pintlefQ T to table QQbyineahs of a pivot screw 33, the'opening in member'i 30 in which said piyot screw is mounted beiiig slotted for a purpose 'WlilQll'Wlll bejobvious.

.Member 30 is provided with an. elongated aperture 34, elongated; transversely, to prevent interference with the movement thereof by the downwardly-1 depending hub' 3510f table 26 I Secured to the upp'erfends" of me1n- 1 bers 11 and 12, on the reariwallsthereoflis J an inwardlyextending index finger f 36v the free end ofwhicli inturned andf'i'sjus ed as a guide by means, 'otfwhich the'c'ranksliaft bearing end of a connecting rod may "cen- 

